private void BindList()
{
SaleStatisticsQuery query = new SaleStatisticsQuery();
query.PageIndex = this.pager.PageIndex;
query.StartDate = this.startTime;
query.EndDate = this.endTime;
DbQueryResult saleOrderLineItemsStatistics = SubsiteSalesHelper.GetSaleOrderLineItemsStatistics(query);
this.grdOrderLineItem.DataSource = saleOrderLineItemsStatistics.Data;
this.grdOrderLineItem.DataBind();
this.pager.TotalRecords = saleOrderLineItemsStatistics.TotalRecords;
this.grdOrderLineItem.PageSize = query.PageSize;
}